What is blokcheyn: to explain an example of Google Docs

What is the difference from the database

It is widely believed that blokcheyn replace the database. This is not quite true. This system simply change the way database synchronization with each other.

Imagine two banks. When a request to transfer money from one client to another, banks need to adjust its balance settlement. We have to spend time and effort to coordinate, synchronize and testing. All this is done to make sure that the transaction took place properly.

Remittances are usually found in the possession of a payment initiator has not come yet to confirm that they received the receiving party. Blokcheyn simplify this process. In this system, only one financial transaction history, available to both parties. There are not two separate databases that you want to synchronize.

Let's go ahead and remember what happens when multiple users need to make changes in one document.

What is the similarity to Google Docs

Previously, we were sent to another user to a Microsoft Word document and asked to make changes in it. It's pretty tiring. It is necessary to wait for the edited file back to you. Only then can view or edit in it something.

Databases are now working exactly the same way. Two users can not simultaneously update a record. Similarly, banks monitor cash balances and transfers. At the time of transfer, they block access, make changes to his side and then open access.

In Google Docs both sides can edit a document at the same time. They see the same site.

How can we be sure that the data is put forward to the other party, are authentic?

All data is stored in blocks, each of which has its own name, number and information on previous units. We have to solve a complex problem for the formation of such a bloc computer. Imagine that in order to add an entry to document each of the participants must solve a complex equation, and then checks each of its response, based on the common data. Ready unit is compared with the general data and takes his place in the chain. This helps to avoid hacking and editing data by hackers.

Sergei Alexandrovich, editor DeCenter community dedicated blokcheynu and cryptocurrency

Imagine how much business and legal documents could be used in a similar way. It is much easier to create documents with open access than transfer files each other and confuse the versions and amendments.

Of course, blokcheyn technology does not need to share documents. But it is easier to understand if we recall documents shared.